2011-2014 - postgraduate study (full-time course) at Kryvyi Rih National University, speciality - control processes automation.

Passed Ph.D. defense on the subject “Adaptive control of the pulp gas phase parameters in the flotation process based on the dynamic effects of high-energy ultrasound”.

The author of 32 scientific works, including 21 papers in specialized scientific publications, 12 papers in scientific publications included into Scopus, 2 papers in foreign scientific publications (Germany, Poland).

The author of 2 patents of Ukraine.

Since 2014 Andrey Pikilnyak is senior research fellow of research department of Kryvyi Rih National University. Since September he is associate professor of Engineering technology Department.